Lubricator.



No. 803,182. PATENTD OGTv. 3l, 1905.

L. B. MANBS.

LUBRIGATOR.

APPLIoATIoN Hum 0017. 1904.

. WWW/ffii UNTTED STATES PATENT QEETCE.

LUBRICATOR,

Specification of Letters Patent.

. Patented Oct. 31, 1905.

Application filed ('-ctober 7, 1904. Serial No. 227,545.

To a/ZZ whom t may concern.-

Be it known that I, LEE B. MANES, a citizen of the United States,residing at Elsinore, in the county of Riverside and State ofCalifornia, have invented new and useful Improvements in Lubricators, ofwhich the following is a specification.

My invention relates to lubricators; and its primary object is toprovide a novel form of lubricator which is adapted to feed lubricant tothe bearings of a line-shaft and be automatically operated andcontrolled by and during the rotation of the line-shaft.

A further object of the invention is to provide means for reconveying anoversupply of lubricant from the drip-nozzle back to the reservoir,thereby preventing waste of lubricant.

Still further objects of the invention will appear as the nature of thesame is more fully understood from the accompanying description andaccompanying drawings.

The invention consists in the construction, combination, and arrangementof parts hereinafter fully described, claimed, and illustrated in theaccompanying drawings, in which- Eigure 1 is an elevation of alubricator constructed in accordance with my invention and shown inapplied position, the pumpcylinder being in longitudinal section. Fig. 2is a detail side elevation of the striker-arm, showing the manner inwhich it is applied to the line-shaft.

Referring to the drawings by referencenumerals, 1 indicates a hangerprovided with the usual bearing 2, in which is journaled and supported aine-shaft 3. 4 indicatesa pump-cylinder fully opened at its upper andlower ends and provided with externally-arranged screw-threads adjacentits ends. The lower end of the cylinder has removably secured thereto abottom 5, provided with a depending internally-threaded nipple 6,havingcommunication with the interior of the cylinder, the inner surfaceof said bottom being inclined downward toward its center to adapt it toform a seat for a valve 7, convexed in cross-section. The valve 7 isprovided with a centrally-located depending lug 8, adapted to normallyfit within the nipple 6 and guide the valve during its movement,

4valve 5.

whereby all liability of the valve becoming disengaged and not properlyseating itself is obviated.

The cylinder has connection with a reservoir 9 of any preferredconstruction by means of a feed-pipe 10, the latter having one of itsends connected to the bottom of the reservoir `and its other endconnected to the threaded portion of the nipple 6. The upper end of thecylinder is normally closed by a removable cap 1 1, which is providedwith a centrally-located aperture 12. Arranged adjacent to the upper endof the cylinder and on the interior thereof is a packing-box 13, formedby relatively arranging in the cylinder reversely positioned concavoconvex plates 14, which are provided with oppositely-disposed collars15, centrally arranged and adapted to provide bearings for the receptionof a reciprocating piston-rod 16. Secured to the lower end of saidpiston-rod is a hollow piston-head 1 7, which is provided with aconcaved valve-seat 18, adapted to receive a valve 19, similar inconstruction to the This valve isalso provided with a lug 20, whichoperates to guide said valve in its movement. Positioned between thepacking-box and the upper portion of the piston-head 17, is anexpansion-spring 21, which acts to normally retain said pistonhead inthe lower portion of the cylinder or at a point at the extremity of itsdownward stroke, said downward movement of the piston-head being limitedby an annular stop 22, secured upon the interior of the cylinder at apoint adjacent its lower end. An arm 23 is secured to the cylinder andhas its upper extremity projected above the upper end of the cylinder,said extremity being adapted to have pivotally secured thereto anoperating-lever 24 to position the free end of said lever in the path ofthe movement of a strikerarm 25. The lever 24 is secured to thepiston-rod 16 by means of a link connection 26. The cylinder is providedwith a dischargeopening 27, situated at a point adjacent the packing-box18, and secured to the cylinder and communicating with saiddischargeopening is a feed-pipe 28, having its opposite end connected bymeans of a union 29 to a drip-nozzle 30. Connected to the upper end l ofsaid union is a return-pipe 31, having its IOO lower end positionedabove a funnel 32', secured to the top of the reservoir 9, whereby whenan excessive supply of oil is 'conveyed to the drip-nozzle 30 it will bereadily reconveyed back to the reservoir 9 through said pipe 31.

The structure above described is adapted to be secured in its entiretyin such position that the discharge end of the drip-nozzle 30 will bepositioned above the bearing 2 and the lever will be positioned aboveand in parallel alinement with the shaft 3, and in order to accomplishthis l utilize two bracket-arms, one (indicated by 32) being secured tothe hanger l and the cylinder 4 and the other (indicated by 33) beingsecured to any horizontal support and said cylinder. The striker-arm 25has one of its ends curved in the arc of a circle, as indicated by thenumeral 34, and its other end is securedto the shaft 3 by means of acoupling 34a, said striker-arm being positioned upon the shaft 3 in sucha manner thatits curved end 34 will engage the free end of theoperatinglever 24 during the rotation of the shaft.

The operation of the device may be described in the following manner: Itis apparent that during the rotation of the shaft 3 the curved end ofthe striker-arm 25 will successively engage the free end of theoperating-lever 24 and through virtue of its engagement cause said leverto be swung upwardly upon its pivot. This upward movement of the lever25 will cause the pistonhead 17 to correspondingly move upward in thecylinder against the tension of the spring 2l, thereby drawing aquantity of lubricant from the reservoir through the pipe 10 into thebottom of the cylinder. As the shaft revolves sufliciently to move thestriker-arm out of engagement with the lever 24, the piston-head will befree to be moved downward by the spring 21, thereby unseating the valve19 and permitting the lubricant which was drawn within the cylinder bythe upward movement of the piston-head to flow above said piston-head.When the strikerarm again operates the lever 24, the lubricant above thepiston-head will be forced through the pipe 28 to the feed-nozzle 30,from whence it may be fed to the bearing 2 in any desired quantity, thequantity of the feed being regulated by a valve 34h, positioned in thedrip-nozzle. When a greater quantity of lubricant is fed to thedrip-nozzie 30 than is necessary, said excess of lubricant will bereturned to the reservoir 9 through the pipe 31, and to control andregulate said return I provide a valve 35, which is positioned in saidpipe 31.

lt is apparent from the above description, in connection with theaccompanying drawtween said lever Yand piston-rod, a drip-noz- Zlehaving connection with said cylinder, and a striker-arm secured to saidshaft and adapted to engage the lever to move the pistonhead upwardwithin the cylinder.

2. In a lubricator, a bearing, a shaft journaled in said bearing, areservoir provided with a funnel, a pump-cylinder having connection withsaid reservoir, a drip-nozzle having connection with said pump-cylinder,a piston-rod having a piston-head movable in said cylinder, an armsecured to said cylinder, a lever pivotally secured to said arm, linkconnection between the lever and pistonrod, a striker-arm secured tosaid shaft and adapted to engage said lever to move the piston-headupward within the cylinder, and a return-pipe adapted to convey anexcess of lubricant from the drip-nozzle to said funnel.

3. ln a lubricator, a bearing, a shaft ournaled in said bearing, areservoir provided with a funnel, a pump-cylinder having connection withsaid cylinder, a drip-nozzle having connection with said pump-cylinder,a packing-box situated within the upper end of said cylinder and formedby reversely-arranged concave-convex plates, a piston-rod movable insaid packing-box, and having its lower end provided with a piston-head,a spring situated between the packing-boxl and piston-head to normallyretain said pistonhead at the limit of its downward stroke, an armsecured to the cylinder, a lever pivotally secured to said arm, linkconnection between the lever and piston-head, a strikerarm secured tosaid shaft and adapted to engage said lever to move the piston-headupward against the tension of said spring, and a return-pipe adapted toconvey an excess of lubricant from the drip-nozzle to said funnel.

4. ln a lubricator, a bearing, a shaft journaled in said bearing, areservoir, a pumpcylinder having connection with said reservoir,a'packing-box situated within the upper end of said pump-cylinder, adrip-nozzle having connection with said cylinder, a piston mountedwithin said cylinder, a spring interposed between said packing-box andpiston-head to normally retain the piston- TIO means for reeonveying anexcess of feed to Io the drip-nozzle back to the reservoir.

head at the limit of its downward movement, a piston-rod havingconnection with its piston-head and extending upwardly through Intestimony whereof I affix my signature the packing-box above saidcylinder, an arm in presence of two witnesses. secured to said cylinder,a lever pivotally LEE B MANES secured to said arm, and a curved strikerll arm secured to said shaft and adapted to en- Witnesses: gage saidlever to move the piston-head up- SCOTT E. MANOTT, ward against thetension of said spring7 and A DAM G. KEOK.

